I mean if they wanted it to be effective, the Germans shouldn't have designed it with holes in the first place.
The one on the left looks fine. I see what looks like “splats” from bullets and not actual holes. The middle has a couple holes but they look grazing? The one on the right definitely got shot through.
E: makes me wonder if these were tested rather than the result of an attack?
Left: handgun rounds, Middle: some sort of average rifle or soft bullet? Right: something high powered or specialized bullet like APC.
Top of the image says "body armor test" so the holes are from the tests and not combat. Your edit is most likely correct.